A 100% PES woven fabric was subjected to a silk-like finishing treatment using a two-factor (soda concentration and vaporisation time), three-level experimental design on a pilot plant in order to examine the influence of process variables on fabric drape and hand, and also to relate weight loss to the properties of the finished fabric. Weight loss in the fabric was significantly related to the process variables studied. By contrast, the vaporisation time affected no drape indicator, even though it interacted significantly with the soda concentration, which influenced three of the five indicators examined. Also the vaporisation time affected no FAST property, but its interaction with the soda concentration had a significant effect on all drape-related FAST parameters. Regression equations accurately predicting drape indicators and physico-mechanical properties of the fabric studied from its weight loss are proposed

The usefulness of the fractal dimension of drape (D) to explain the shape of fabrics acquired when allowed to fall freely under the effect of gravity was assessed by using the box-counting method to calculate it for comparison with the drape ratio (%DR) of 36 commercial woven fabrics spanning a wide range of composition, weave type and mass per square meter These two parameters were found to be highly correlated with %DR, varying over wide ranges and D over narrow ranges. Based on the results, the fractal nature of the drape does not significantly improve on the information about the drape shape in woven fabrics provided by the well-known indicator "drape ratio" (%DR)

The usefulness of the fractal dimension of drape (D) to explain the shape of fabrics acquired when allowed to fall freely under the effect of gravity was assessed by using the box-counting method to calculate it for comparison with the drape ratio (%DR) of 36 commercial woven fabrics spanning a wide range of composition, weave type and mass per square meter These two parameters were found to be highly correlated with %DR, varying over wide ranges and D over narrow ranges. Based on the results, the fractal nature of the drape does not significantly improve on the information about the drape shape in woven fabrics provided by the well-known indicator

Industrially textured PLA multifilaments were heat set under different conditions at 110 ºC for 1 min and subjected to one cycle of deformation up to 20%. Thermal transitions of the original textured, heat set and cyclic strained filaments were measured using differential scanning calorimetry from 25 to 250 ºC. Cyclic deformation induces an endo-exo transition at peak temperatures between 55 - 60 ºC that is not observed in the original textured and heat set multifilaments. There is another endo-exo transition with peak temperatures between 67 and 72 ºC in all filaments, the intensity of which varies according to texturing conditions, heat setting and cycle strain. Texturing conditions, heat setting and cyclic strain play a role in thermal transitions, the strain at breaking and elastic properties of the filaments. The crystallinity and magnitude of the endo-exo thermal events detected by DSC are related to the strain at breaking and elasticity of polylactide textured multifilaments